S. T. Lisal, U. Azis, W. Thioritz, M. F. Idrus, and A. J. Tanra, “The Comparison of Salivary Alpha Amylase Enzym Level Between Anxiety Patients and Depression Patients”, IJSBAR, vol. 36, no. 5, pp. 334–344, Nov. 2017, Accessed: Sep. 18, 2025. [Online]. Available: https://www.gssrr.org/JournalOfBasicAndApplied/article/view/8377